<div class="scene">
</div>

*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
}
html,body{height:100%;}
.scene {
  position: absolute;
  top:0;
  right:0;
  left:0;
  bottom:0;
  margin:auto;
  width:300px;
  height: 300px;
  background: #1d1f20;
  text-align: center;
  overflow:hidden;
}
.scene:hover{
  background:url(https://picsum.photos/300/300) no-repeat 50% 50%;
  background-size:cover;
}